{
  "name": "exif",
  "type": "function",
  "groups": ["Files and Paths"],
  "description": "Retrieves exif tag values from an image file.",
  "arguments": [
    {"arg":"path","description":"An image file path."},
    {"arg":"tag", "optional": true, "description":"The tag to return. If empty, a map with all exif tag values will be returned."}
  ],
  "examples": [
    { "expression":"exif('/my/photo.jpg','Exif.Image.Orientation')", "returns":"0"}
  ]
}